WASD arrows switch / remap keyboard problem

If you suddenly cannot type A, W, S, D on your keyboard, maybe these keys were actually remapped to arrow keys. This could happen during playing a game.

Most keyboard can fix this if you press [Fn] key and then [w] key holding both pressed. This should switch the mapping of the keys back to letters and arrows.

More in this video here:

ALSO read:

Windows key not working

This can also happen. And I managed to sort it by pressing [Fn] key and then [Windows] key.

Windows 10 files sharing

Sometimes this can be a challenge, how to easily share files with Windows 10 between PC computers on a local network.

Recently HOMEGROUP sharing system was removed and here is few tips about current way of sharing files and folders:
https://support.microsoft.com/en-us/help/4027674/windows-10-share-files-in-file-explorer

Skype login problem on Windows 10

Recently I had some problem with signing in to Skype on Windows10. Here is a way to solve the problem, it worked for me.
Basically you make sure first Skype is not running (exit app, remove from Start apps list, restart PC). Then this tutorial will guide you how to disable or delete your user cache saved in Skype app folder. There is some bug with not deleting some lock file, so you get rid of it this way. Then Skype starts clean from scratch. More on thi link:
https://www.kunal-chowdhury.com/2013/04/solution-unable-to-open-skype.html